/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ubiquity.
 *
 * The Initial Developer of the Original Code is Mozilla.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Abimanyu Raja <abimanyuraja@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

let EXPORTED_SYMBOLS = ["GreaseMonkeyFeedPlugin"];

Components.utils.import("resource://ubiquity/modules/utils.js");
Components.utils.import("resource://ubiquity/modules/codesource.js");
Components.utils.import("resource://ubiquity/modules/sandboxfactory.js");
Components.utils.import("resource://ubiquity/modules/collection.js");

function GreaseMonkeyFeedPlugin(feedManager, messageService, webJsm) {
  
  var self = this;
  
  this.type = "gm";
  
  this.installToWindow = function(window){
    
    function onPageLoad(aEvent){
      if (aEvent.originalTarget.location){
        var url = aEvent.originalTarget.location.toString();
        //We check if the page's url ends with .user.js
        if(url.substr(-8,8) == ".user.js"){
          messageService.displayMessage("Greasemonkey!");
          //If it does, we display the subscribe notification bar
          if (!feedManager.isSubscribedFeed(url)){
            feedManager.showNotification(self, 
                                         aEvent.originalTarget,
                                         url,
                                         aEvent.originalTarget.type,
                                         "This page contains a Greasemonkey script " + 
                                         "which Ubiquity can run. " +
                                         "If you'd like to subscribe to it, please " +
                                          "click the button to the right.");
          }
        }
      }
    }
    
    //When a page is loaded, the event is fired
    var appcontent = window.document.getElementById("appcontent");
    if (appcontent){
      appcontent.addEventListener("DOMContentLoaded", onPageLoad, true);
    }    
  }

  this.onSubscribeClick = function GMFP_onSubscribeClick(targetDoc,
                                                        commandsUrl,
                                                        mimetype) {
    //TODO: Display some kind of warning like confirmURL?
    //Are greasemonkey scripts secure enough?
    feedManager.addSubscribedFeed({url: targetDoc.location.href,
                                   title: targetDoc.title,
                                   sourceUrl: commandsUrl,
                                   type: this.type,
                                   canAutoUpdate: true});
    messageService.displayMessage("You did it! Subscription successful!");
                                                        
  };

  this.makeFeed = function GMFP_makeFeed(baseFeedInfo, eventHub) {
    return new GMFPFeed(baseFeedInfo, eventHub, messageService);
  };

  feedManager.registerPlugin(this);
}

function GMFPFeed(baseFeedInfo, eventHub, messageService) {
                   
   let self = this;
   
   self.commands = {};
   // TODO: we need add the GM script code to pageload functions here
   self.pageLoadFuncs = [];
   self.nounTypes = [];
   self.refresh = function refresh() {
    //Do nothing
   }
   self.__proto__ = baseFeedInfo;
   
}